Re: [PATCH V4 net 3/3] tuntap: correctly add the missing XDP flush

From: Jason Wang <redacted>
Date: Sat, 24 Feb 2018 11:32:26 +0800

We don't flush batched XDP packets through xdp_do_flush_map(), this
will cause packets stall at TX queue. Consider we don't do XDP on NAPI
poll(), the only possible fix is to call xdp_do_flush_map()
immediately after xdp_do_redirect().

Note, this in fact won't try to batch packets through devmap, we could
address in the future.

Reported-by: Christoffer Dall <redacted>
Fixes: 761876c857cb ("tap: XDP support")
Signed-off-by: Jason Wang <redacted>

Applied, and all 3 patches queued up for -stable.

Thanks.